Video-encoding and video-encoding control method

a video signal and control method technology, applied in the field of video signal encoding devices, can solve problems such as errors in the vbv buffer, and achieve the effect of achieving seamless connection between chapters

Inactive Publication Date: 2006-03-09
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0019] The present invention has a good effect of achieving seamless connection between chapters without causing an error in a VBV buffer.

Problems solved by technology

Subsequently, an error may occur in the VBV buffer.

Method used

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  • Video-encoding and video-encoding control method
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  • Video-encoding and video-encoding control method

Examples

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Embodiment Construction

[0030] Next, an embodiment of the present invention will be described in detail with reference to drawings.

[0031]FIG. 1 shows an example configuration of a video-encoding device according to an embodiment of the present invention. The video-encoding device includes a video encoder 100 for encoding a video signal, an audio encoder 200 for encoding an audio signal, a multiplexer 300 for multiplexing outputs of the video encoder 100 and the audio encoder 200, a medium-recording unit 400 for recording stream data multiplexed by the multiplexer 300 onto a recording medium 490, and an encoding-control unit 500 for controlling encoding performed by the video encoder 100.

[0032] The encoding-control unit 500 includes a processor 510, a ROM 520, a RAM 530, an input-and-output interface 540, and a bus 550 for connecting the above-described units to one another. The processor 510 receives a generated-code amount or the amount of data encoded by the video encoder 100 via a signal line 179, det...

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Abstract

A video-encoding device that can achieve seamless connection without causing an error in a VBV buffer is provided. Recording-mode determination means for determining an initial value of the occupied amount of a virtual buffer based on a determination result relating to seamless connection between a preceding chapter and the following chapter that are included in video signals, occupied-amount update means for updating the occupied amount of the virtual buffer, optimum-occupied-amount calculation means for calculating a predetermined optimum occupied amount based on the updated occupied amount of the virtual buffer, target-code-amount calculation means for calculating a predetermined target-code amount based on the video signals of the following chapter, target-code-amount adjustment means for adjusting the target code amount so that the sum total of the occupied amount of the virtual buffer and the target code amount does not exceed the optimum occupied amount, and encoding means for performing the encoding according to the adjusted target code amount are provided.

Description

TECHNICAL FIELD [0001] The present invention relates to a video-encoding device for encoding a video signal and particularly relates to a video-encoding device that controls the amount of codes generated from a following chapter, where seamless connection between chapters is performed, a video-encoding control device, and a video-encoding control method and a program for making a computer execute the method. BACKGROUND ART [0002] In recent years, optical disks have received attention, as recording mediums that can store video data and audio data. The optical disk is used, not only as a medium used for a contents commodity such as a movie, but also as a writable medium used for recording data on the user side. For example, the DVD standard that allows onetime recording of data onto one and the same area, the DVD-RW standard that allows rewriting data repetitively, and so forth are known, as the rewritable medium. The DVD-Video standard used for a reproduce-only disk is known, as the ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04N11/04H04N11/02H04N7/12H04B1/66G11B27/10H04N5/92H04N5/85H04N9/804H04N19/00H04N19/124H04N19/134H04N19/15H04N19/156H04N19/423H04N19/503H04N19/51H04N19/513H04N19/577H04N19/61H04N19/625H04N19/91H04N21/234H04N21/44
CPCG11B27/105H04N19/152G11B2020/10759H04N5/85H04N9/8042H04N21/23406H04N21/23424H04N21/44004H04N21/44016H04N19/172H04N19/149H04N19/115H04N19/61H04N19/124G11B2020/10675H04N5/92
Inventor ARIDOME, KENICHIROMIYAZAKI, HIRONOBUISOBE, YUKIO
Owner SONY CORP
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